18820538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12049}}^1$

素因数の和:12133

約数の個数: 16

約数和(自身を含む): 31233600

約数和(自身を除く): 12413062

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12049, 24098, 132539, 265078, 855479, 1710958, 9410269, 18820538]

約数ペア:

[(1, 18820538), (2, 9410269), (11, 1710958), (22, 855479), (71, 265078), (142, 132539), (781, 24098), (1562, 12049)]